summaryrefslogtreecommitdiff
path: root/arch/mips/lasat/sysctl.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/mips/lasat/sysctl.c')
-rw-r--r--arch/mips/lasat/sysctl.c355
1 files changed, 355 insertions, 0 deletions
diff --git a/arch/mips/lasat/sysctl.c b/arch/mips/lasat/sysctl.c
new file mode 100644
index 000000000000..1c0cc620a43f
--- /dev/null
+++ b/arch/mips/lasat/sysctl.c
@@ -0,0 +1,355 @@
+/*
+ * Thomas Horsten <thh@lasat.com>
+ * Copyright (C) 2000 LASAT Networks A/S.
+ *
+ * This program is free software; you can distribute it and/or modify it
+ * under the terms of the GNU General Public License (Version 2) as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Routines specific to the LASAT boards
+ */
+#include <linux/types.h>
+#include <asm/lasat/lasat.h>
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/sysctl.h>
+#include <linux/stddef.h>
+#include <linux/init.h>
+#include <linux/fs.h>
+#include <linux/ctype.h>
+#include <linux/string.h>
+#include <linux/net.h>
+#include <linux/inet.h>
+#include <asm/uaccess.h>
+
+#include "sysctl.h"
+#include "ds1603.h"
+
+static DECLARE_MUTEX(lasat_info_sem);
+
+/* Strategy function to write EEPROM after changing string entry */
+int sysctl_lasatstring(ctl_table *table, int *name, int nlen,
+ void *oldval, size_t *oldlenp,
+ void *newval, size_t newlen, void **context)
+{
+ int r;
+ down(&lasat_info_sem);
+ r = sysctl_string(table, name,
+ nlen, oldval, oldlenp, newval, newlen, context);
+ if (r < 0) {
+ up(&lasat_info_sem);
+ return r;
+ }
+ if (newval && newlen) {
+ lasat_write_eeprom_info();
+ }
+ up(&lasat_info_sem);
+ return 1;
+}
+
+
+/* And the same for proc */
+int proc_dolasatstring(ctl_table *table, int write, struct file *filp,
+ void *buffer, size_t *lenp, loff_t *ppos)
+{
+ int r;
+ down(&lasat_info_sem);
+ r = proc_dostring(table, write, filp, buffer, lenp, ppos);
+ if ( (!write) || r) {
+ up(&lasat_info_sem);
+ return r;
+ }
+ lasat_write_eeprom_info();
+ up(&lasat_info_sem);
+ return 0;
+}
+
+/* proc function to write EEPROM after changing int entry */
+int proc_dolasatint(ctl_table *table, int write, struct file *filp,
+ void *buffer, size_t *lenp, loff_t *ppos)
+{
+ int r;
+ down(&lasat_info_sem);
+ r = proc_dointvec(table, write, filp, buffer, lenp, ppos);
+ if ( (!write) || r) {
+ up(&lasat_info_sem);
+ return r;
+ }
+ lasat_write_eeprom_info();
+ up(&lasat_info_sem);
+ return 0;
+}
+
+static int rtctmp;
+
+#ifdef CONFIG_DS1603
+/* proc function to read/write RealTime Clock */
+int proc_dolasatrtc(ctl_table *table, int write, struct file *filp,
+ void *buffer, size_t *lenp, loff_t *ppos)
+{
+ int r;
+ down(&lasat_info_sem);
+ if (!write) {
+ rtctmp = ds1603_read();
+ /* check for time < 0 and set to 0 */
+ if (rtctmp < 0)
+ rtctmp = 0;
+ }
+ r = proc_dointvec(table, write, filp, buffer, lenp, ppos);
+ if ( (!write) || r) {
+ up(&lasat_info_sem);
+ return r;
+ }
+ ds1603_set(rtctmp);
+ up(&lasat_info_sem);
+ return 0;
+}
+#endif
+
+/* Sysctl for setting the IP addresses */
+int sysctl_lasat_intvec(ctl_table *table, int *name, int nlen,
+ void *oldval, size_t *oldlenp,
+ void *newval, size_t newlen, void **context)
+{
+ int r;
+ down(&lasat_info_sem);
+ r = sysctl_intvec(table, name, nlen, oldval, oldlenp, newval, newlen, context);
+ if (r < 0) {
+ up(&lasat_info_sem);
+ return r;
+ }
+ if (newval && newlen) {
+ lasat_write_eeprom_info();
+ }
+ up(&lasat_info_sem);
+ return 1;
+}
+
+#ifdef CONFIG_DS1603
+/* Same for RTC */
+int sysctl_lasat_rtc(ctl_table *table, int *name, int nlen,
+ void *oldval, size_t *oldlenp,
+ void *newval, size_t newlen, void **context)
+{
+ int r;
+ down(&lasat_info_sem);
+ rtctmp = ds1603_read();
+ if (rtctmp < 0)
+ rtctmp = 0;
+ r = sysctl_intvec(table, name, nlen, oldval, oldlenp, newval, newlen, context);
+ if (r < 0) {
+ up(&lasat_info_sem);
+ return r;
+ }
+ if (newval && newlen) {
+ ds1603_set(rtctmp);
+ }
+ up(&lasat_info_sem);
+ return 1;
+}
+#endif
+
+#ifdef CONFIG_INET
+static char lasat_bcastaddr[16];
+
+void update_bcastaddr(void)
+{
+ unsigned int ip;
+
+ ip = (lasat_board_info.li_eeprom_info.ipaddr &
+ lasat_board_info.li_eeprom_info.netmask) |
+ ~lasat_board_info.li_eeprom_info.netmask;
+
+ sprintf(lasat_bcastaddr, "%d.%d.%d.%d",
+ (ip ) & 0xff,
+ (ip >> 8) & 0xff,
+ (ip >> 16) & 0xff,
+ (ip >> 24) & 0xff);
+}
+
+static char proc_lasat_ipbuf[32];
+/* Parsing of IP address */
+int proc_lasat_ip(ctl_table *table, int write, struct file *filp,
+ void *buffer, size_t *lenp, loff_t *ppos)
+{
+ int len;
+ unsigned int ip;
+ char *p, c;
+
+ if (!table->data || !table->maxlen || !*lenp ||
+ (*ppos && !write)) {
+ *lenp = 0;
+ return 0;
+ }
+
+ down(&lasat_info_sem);
+ if (write) {
+ len = 0;
+ p = buffer;
+ while (len < *lenp) {
+ if(get_user(c, p++)) {
+ up(&lasat_info_sem);
+ return -EFAULT;
+ }
+ if (c == 0 || c == '\n')
+ break;
+ len++;
+ }
+ if (len >= sizeof(proc_lasat_ipbuf)-1)
+ len = sizeof(proc_lasat_ipbuf) - 1;
+ if (copy_from_user(proc_lasat_ipbuf, buffer, len))
+ {
+ up(&lasat_info_sem);
+ return -EFAULT;
+ }
+ proc_lasat_ipbuf[len] = 0;
+ *ppos += *lenp;
+ /* Now see if we can convert it to a valid IP */
+ ip = in_aton(proc_lasat_ipbuf);
+ *(unsigned int *)(table->data) = ip;
+ lasat_write_eeprom_info();
+ } else {
+ ip = *(unsigned int *)(table->data);
+ sprintf(proc_lasat_ipbuf, "%d.%d.%d.%d",
+ (ip ) & 0xff,
+ (ip >> 8) & 0xff,
+ (ip >> 16) & 0xff,
+ (ip >> 24) & 0xff);
+ len = strlen(proc_lasat_ipbuf);
+ if (len > *lenp)
+ len = *lenp;
+ if (len)
+ if(copy_to_user(buffer, proc_lasat_ipbuf, len)) {
+ up(&lasat_info_sem);
+ return -EFAULT;
+ }
+ if (len < *lenp) {
+ if(put_user('\n', ((char *) buffer) + len)) {
+ up(&lasat_info_sem);
+ return -EFAULT;
+ }
+ len++;
+ }
+ *lenp = len;
+ *ppos += len;
+ }
+ update_bcastaddr();
+ up(&lasat_info_sem);
+ return 0;
+}
+#endif /* defined(CONFIG_INET) */
+
+static int sysctl_lasat_eeprom_value(ctl_table *table, int *name, int nlen,
+ void *oldval, size_t *oldlenp,
+ void *newval, size_t newlen,
+ void **context)
+{
+ int r;
+
+ down(&lasat_info_sem);
+ r = sysctl_intvec(table, name, nlen, oldval, oldlenp, newval, newlen, context);
+ if (r < 0) {
+ up(&lasat_info_sem);
+ return r;
+ }
+
+ if (newval && newlen)
+ {
+ if (name && *name == LASAT_PRID)
+ lasat_board_info.li_eeprom_info.prid = *(int*)newval;
+
+ lasat_write_eeprom_info();
+ lasat_init_board_info();
+ }
+ up(&lasat_info_sem);
+
+ return 0;
+}
+
+int proc_lasat_eeprom_value(ctl_table *table, int write, struct file *filp,
+ void *buffer, size_t *lenp, loff_t *ppos)
+{
+ int r;
+ down(&lasat_info_sem);
+ r = proc_dointvec(table, write, filp, buffer, lenp, ppos);
+ if ( (!write) || r) {
+ up(&lasat_info_sem);
+ return r;
+ }
+ if (filp && filp->f_dentry)
+ {
+ if (!strcmp(filp->f_dentry->d_name.name, "prid"))
+ lasat_board_info.li_eeprom_info.prid = lasat_board_info.li_prid;
+ if (!strcmp(filp->f_dentry->d_name.name, "debugaccess"))
+ lasat_board_info.li_eeprom_info.debugaccess = lasat_board_info.li_debugaccess;
+ }
+ lasat_write_eeprom_info();
+ up(&lasat_info_sem);
+ return 0;
+}
+
+extern int lasat_boot_to_service;
+
+#ifdef CONFIG_SYSCTL
+
+static ctl_table lasat_table[] = {
+ {LASAT_CPU_HZ, "cpu-hz", &lasat_board_info.li_cpu_hz, sizeof(int),
+ 0444, NULL, &proc_dointvec, &sysctl_intvec},
+ {LASAT_BUS_HZ, "bus-hz", &lasat_board_info.li_bus_hz, sizeof(int),
+ 0444, NULL, &proc_dointvec, &sysctl_intvec},
+ {LASAT_MODEL, "bmid", &lasat_board_info.li_bmid, sizeof(int),
+ 0444, NULL, &proc_dointvec, &sysctl_intvec},
+ {LASAT_PRID, "prid", &lasat_board_info.li_prid, sizeof(int),
+ 0644, NULL, &proc_lasat_eeprom_value, &sysctl_lasat_eeprom_value},
+#ifdef CONFIG_INET
+ {LASAT_IPADDR, "ipaddr", &lasat_board_info.li_eeprom_info.ipaddr, sizeof(int),
+ 0644, NULL, &proc_lasat_ip, &sysctl_lasat_intvec},
+ {LASAT_NETMASK, "netmask", &lasat_board_info.li_eeprom_info.netmask, sizeof(int),
+ 0644, NULL, &proc_lasat_ip, &sysctl_lasat_intvec},
+ {LASAT_BCAST, "bcastaddr", &lasat_bcastaddr,
+ sizeof(lasat_bcastaddr), 0600, NULL,
+ &proc_dostring, &sysctl_string},
+#endif
+ {LASAT_PASSWORD, "passwd_hash", &lasat_board_info.li_eeprom_info.passwd_hash, sizeof(lasat_board_info.li_eeprom_info.passwd_hash),
+ 0600, NULL, &proc_dolasatstring, &sysctl_lasatstring},
+ {LASAT_SBOOT, "boot-service", &lasat_boot_to_service, sizeof(int),
+ 0644, NULL, &proc_dointvec, &sysctl_intvec},
+#ifdef CONFIG_DS1603
+ {LASAT_RTC, "rtc", &rtctmp, sizeof(int),
+ 0644, NULL, &proc_dolasatrtc, &sysctl_lasat_rtc},
+#endif
+ {LASAT_NAMESTR, "namestr", &lasat_board_info.li_namestr, sizeof(lasat_board_info.li_namestr),
+ 0444, NULL, &proc_dostring, &sysctl_string},
+ {LASAT_TYPESTR, "typestr", &lasat_board_info.li_typestr, sizeof(lasat_board_info.li_typestr),
+ 0444, NULL, &proc_dostring, &sysctl_string},
+ {0}
+};
+
+#define CTL_LASAT 1 // CTL_ANY ???
+static ctl_table lasat_root_table[] = {
+ { CTL_LASAT, "lasat", NULL, 0, 0555, lasat_table },
+ { 0 }
+};
+
+static int __init lasat_register_sysctl(void)
+{
+ struct ctl_table_header *lasat_table_header;
+
+ lasat_table_header =
+ register_sysctl_table(lasat_root_table, 0);
+
+ return 0;
+}
+
+__initcall(lasat_register_sysctl);
+#endif /* CONFIG_SYSCTL */
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-19 13:00:00 +0300